/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.lvyh.lightframe.sharding.client.strategy;

import com.lvyh.lightframe.sharding.client.common.DataTableInfo;
import com.lvyh.lightframe.sharding.client.enums.ShardingStrategyType;
import com.lvyh.lightframe.sharding.client.property.AdminServerProperty;
import com.lvyh.lightframe.sharding.client.property.LeafProperty;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.annotation.PostConstruct;
import java.util.HashMap;
import java.util.Map;

@Component
public class ShardingStrategyFactory {

    private Map<ShardingStrategyType, ShardingStrategy> shardingStrategy = new HashMap<>();

    @Autowired
    private AdminServerProperty adminServerProperty;

    @PostConstruct
    public void init() {
        shardingStrategy.put(ShardingStrategyType.RANGE, new RangeShardingStrategy());
        shardingStrategy.put(ShardingStrategyType.HASH, new HashShardingStrategy());
        shardingStrategy.put(ShardingStrategyType.ADAPTIVE, new AdaptiveShardingStrategy(adminServerProperty.getUrl()));
    }

    public ShardingStrategy getShardStrategy(String shardingAlgorithm) {
        ShardingStrategyType shardingStrategyType = ShardingStrategyType.convert(shardingAlgorithm);
        return shardingStrategy.get(shardingStrategyType);
    }

    public DataTableInfo getShardInfo(String shardingAlg, String logicDsKey, String logicTableName, Object shardingValue, int tableShardNum, int dbShardNum) {
        return getShardStrategy(shardingAlg).doShard(logicDsKey, logicTableName, shardingValue, tableShardNum, dbShardNum);
    }

}
